# Scrapy settings for weibo_spider project
#
# For simplicity, this file contains only settings considered important or
# commonly used. You can find more settings consulting the documentation:
#
#     https://docs.scrapy.org/en/latest/topics/settings.html
#     https://docs.scrapy.org/en/latest/topics/downloader-middleware.html
#     https://docs.scrapy.org/en/latest/topics/spider-middleware.html

BOT_NAME = "weibo_spider"

SPIDER_MODULES = ["weibo_spider.spiders"]
NEWSPIDER_MODULE = "weibo_spider.spiders"


# Crawl responsibly by identifying yourself (and your website) on the user-agent
#USER_AGENT = "weibo_spider (+http://www.yourdomain.com)"

# Obey robots.txt rules
ROBOTSTXT_OBEY = False

# Configure maximum concurrent requests performed by Scrapy (default: 16)
CONCURRENT_REQUESTS = 1  # 降低并发数，避免被封

# Configure a delay for requests for the same website (default: 0)
# See https://docs.scrapy.org/en/latest/topics/settings.html#download-delay
# See also autothrottle settings and docs
DOWNLOAD_DELAY = 3  # 增加延迟，避免请求过快
# The download delay setting will honor only one of:
#CONCURRENT_REQUESTS_PER_DOMAIN = 16
#CONCURRENT_REQUESTS_PER_IP = 16

# Disable cookies (enabled by default)
COOKIES_ENABLED = True
COOKIES_DEBUG = True
COOKIE_PERSISTENCE = True

# Disable Telnet Console (enabled by default)
#TELNETCONSOLE_ENABLED = False

# Override the default request headers:
DEFAULT_REQUEST_HEADERS = {
    "Accept": "application/json, text/plain, */*",
    "Accept-Language": "zh-CN,zh;q=0.9",
    "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.0.0 Safari/537.36"
}

# Enable or disable spider middlewares
# See https://docs.scrapy.org/en/latest/topics/spider-middleware.html
#SPIDER_MIDDLEWARES = {
#    "weibo_spider.middlewares.WeiboSpiderSpiderMiddleware": 543,
#}

# Enable or disable downloader middlewares
# See https://docs.scrapy.org/en/latest/topics/downloader-middleware.html
DOWNLOADER_MIDDLEWARES = {
    'scrapy.downloadermiddlewares.useragent.UserAgentMiddleware': None,
    'scrapy.downloadermiddlewares.retry.RetryMiddleware': 90,
    'scrapy.downloadermiddlewares.httpproxy.HttpProxyMiddleware': 110,
    'scrapy.downloadermiddlewares.redirect.RedirectMiddleware': 543,
}

# Enable or disable extensions
# See https://docs.scrapy.org/en/latest/topics/extensions.html
#EXTENSIONS = {
#    "scrapy.extensions.telnet.TelnetConsole": None,
#}

# Configure item pipelines
# See https://docs.scrapy.org/en/latest/topics/item-pipeline.html
ITEM_PIPELINES = {
    "weibo_spider.pipelines.WeiboCommentsPipeline": 300,
}

# 禁用默认的 Feed Exporter
FEED_EXPORT_ENCODING = None
FEEDS = None

# Enable and configure the AutoThrottle extension (disabled by default)
# See https://docs.scrapy.org/en/latest/topics/autothrottle.html
AUTOTHROTTLE_ENABLED = True
# The initial download delay
AUTOTHROTTLE_START_DELAY = 5
# The maximum download delay to be set in case of high latencies
AUTOTHROTTLE_MAX_DELAY = 60
# The average number of requests Scrapy should be sending in parallel to
# each remote server
AUTOTHROTTLE_TARGET_CONCURRENCY = 1.0
# Enable showing throttling stats for every response received:
AUTOTHROTTLE_DEBUG = False

# Enable and configure HTTP caching (disabled by default)
# See https://docs.scrapy.org/en/latest/topics/downloader-middleware.html#httpcache-middleware-settings
#HTTPCACHE_ENABLED = True
#HTTPCACHE_EXPIRATION_SECS = 0
#HTTPCACHE_DIR = "httpcache"
#HTTPCACHE_IGNORE_HTTP_CODES = []
#HTTPCACHE_STORAGE = "scrapy.extensions.httpcache.FilesystemCacheStorage"

# Set settings whose default value is deprecated to a future-proof value
REQUEST_FINGERPRINTER_IMPLEMENTATION = "2.7"
TWISTED_REACTOR = "twisted.internet.asyncioreactor.AsyncioSelectorReactor"

# Enable and configure the Retry extension (disabled by default)
RETRY_ENABLED = True
RETRY_TIMES = 3
RETRY_HTTP_CODES = [500, 502, 503, 504, 522, 524, 408, 429, 403]

# Enable and configure the Logging extension (disabled by default)
LOG_LEVEL = 'INFO'
LOG_FILE = 'weibo_spider.log'
LOG_FORMAT = '%(asctime)s [%(name)s] %(levelname)s: %(message)s'
LOG_DATEFORMAT = '%Y-%m-%d %H:%M:%S'

# 设置下载超时
DOWNLOAD_TIMEOUT = 30

# 启用压缩
COMPRESSION_ENABLED = True

# 设置并发请求数
CONCURRENT_REQUESTS_PER_DOMAIN = 1
CONCURRENT_REQUESTS_PER_IP = 1

# 启用重定向
REDIRECT_ENABLED = True
REDIRECT_MAX_TIMES = 5

# 设置下载器超时
DOWNLOAD_TIMEOUT = 30

# 设置重试间隔
RETRY_HTTP_CODES = [500, 502, 503, 504, 522, 524, 408, 429, 403]
RETRY_TIMES = 3
RETRY_PRIORITY_ADJUST = -1
